Are you sure of that bug. Save for web recorded in an action does have a bug but as far as I know it has nothing to do with any path. The problem I know of is the actions save the wrong file extension. instead of saving *.jpg files it save *.html files. When recording the action what gets save is a *.jpg file but the action records *.html into the action step.
Batch can override "Save as" I know but I do not think it can override "Save For Web"
Thank you again for your reply which was very unclear.
I am very aware of the checkbox that is in your screenshot. I had that checked when I tested the batch process and as I said in my first post, this has no affect on the save for web command in my action, ie. it does not overwrite the save for web, "save as" when I run the batch. I'm assuming that it is not possible to do this. Is that right?
I wondered if anyone else could help me out here with a clearer explanation?
Since save for web is an export plugin, none of the destination options have any effect on where the files are saved
or the file names.
Save for web only saves the files to the folder specified when you recorded the action.
(it's always been that way and still is in photoshop cc)
You might look at the Image Processor Pro
(included in Dr. Brown’s Services 2.3.1)
(has a save for web option)
Batch as I wrote the first time can override Action"Save As" steps not "Save for Web" steps using the Override Actions Save As option and set a file name model.
The is no option to Override Action "Save for Web" steps you should be able to see that in the Batch dialog. "Save for web" is complex has many options can save animated gif, convert jpeg to srgb, strip exif.